The installation will not take you more than 3 minutes, watch in hand, the handles are in my opinion a little kitsch, however all exudes quality.
In use both dual wheels provides real stability to the device, the grip should be firm I suggest you do the exercises facing a wall so that you serve as a buffer (to avoid damaging you back).
Goodies: manufacturing quality, dual wheels, ease of installation, price.
Cons: a little kitsch handles.
Conclusion: Everlast offers here a very good effective product every day and really very affordable.